DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 27 | 44 | 55 | 41 | 111 | 53 | 587 | 242 | 32 | 59 | 26 | 32 |
2 | 24 | 34 | 41 | 40 | 268 | 50 | 444 | 164 | 38 | 49 | 28 | 32 |
3 | 28 | 32 | 33 | 55 | 258 | 50 | 274 | 114 | 39 | 39 | 26 | 46 |
4 | 46 | 30 | 30 | 707 | 175 | 64 | 168 | 93 | 32 | 460 | 748 | 42 |
5 | 37 | 25 | 27 | 824 | 121 | 74 | 115 | 83 | 29 | 131 | 1270 | 32 |
6 | 30 | 37 | 26 | 879 | 96 | 68 | 92 | 231 | 29 | 63 | 616 | 29 |
7 | 27 | 33 | 25 | 506 | 84 | 50 | 81 | 1470 | 26 | 539 | 270 | 397 |
8 | 27 | 32 | 24 | 779 | 78 | 340 | 243 | 2050 | 26 | 718 | 555 | 153 |
9 | 40 | 32 | 21 | 949 | 69 | 979 | 250 | 1090 | 92 | 242 | 205 | 71 |
10 | 36 | 29 | 33 | 547 | 67 | 766 | 209 | 517 | 52 | 99 | 116 | 47 |
11 | 30 | 27 | 75 | 289 | 360 | 432 | 136 | 297 | 452 | 62 | 130 | 37 |
12 | 30 | 28 | 61 | 172 | 681 | 269 | 98 | 221 | 533 | 49 | 97 | 31 |
13 | 41 | 27 | 47 | 101 | 342 | 193 | 93 | 188 | 202 | 39 | 49 | 27 |
14 | 50 | 28 | 40 | 85 | 185 | 171 | 153 | 135 | 81 | 35 | 39 | 24 |
15 | 40 | 42 | 37 | 73 | 115 | 156 | 115 | 126 | 81 | 34 | 36 | 24 |
16 | 33 | 49 | 39 | 66 | 94 | 142 | 111 | 90 | 58 | 33 | 36 | 26 |
17 | 31 | 34 | 46 | 60 | 301 | 309 | 88 | 59 | 45 | 31 | 30 | 24 |
18 | 30 | 27 | 45 | 54 | 755 | 1340 | 70 | 53 | 46 | 28 | 36 | 22 |
19 | 32 | 27 | 48 | 53 | 456 | 1340 | 59 | 47 | 67 | 72 | 31 | 22 |
20 | 32 | 26 | 48 | 47 | 262 | 777 | 61 | 44 | 44 | 63 | 29 | 36 |
21 | 29 | 26 | 45 | 44 | 167 | 499 | 610 | 40 | 38 | 38 | 27 | 36 |
22 | 27 | 26 | 73 | 42 | 117 | 344 | 469 | 36 | 36 | 109 | 29 | 24 |
23 | 26 | 26 | 142 | 44 | 93 | 219 | 262 | 36 | 33 | 166 | 29 | 23 |
24 | 35 | 30 | 128 | 42 | 102 | 159 | 154 | 36 | 30 | 68 | 90 | 22 |
25 | 34 | 29 | 319 | 39 | 85 | 145 | 109 | 35 | 28 | 43 | 88 | 22 |
26 | 67 | 26 | 248 | 38 | 87 | 129 | 118 | 33 | 520 | 35 | 41 | 23 |
27 | 298 | 30 | 137 | 37 | 91 | 95 | 155 | 34 | 242 | 31 | 34 | 24 |
28 | 88 | 53 | 85 | 39 | 64 | 217 | 111 | 29 | 123 | 33 | 63 | 22 |
29 | 44 | 80 | 67 | 54 | --- | 162 | 303 | 29 | 68 | 28 | 49 | 20 |
30 | 31 | 73 | 57 | 60 | --- | 109 | 260 | 30 | 76 | 26 | 37 | 29 |
31 | 30 | --- | 46 | 62 | --- | 228 | --- | 29 | --- | 28 | 33 | --- |
TOTAL | 1380 | 1042 | 2148 | 6828 | 5684 | 9929 | 5998 | 7681 | 3198 | 3450 | 4893 | 1399 |
MEAN | 44.5 | 34.7 | 69.3 | 220 | 203 | 320 | 200 | 248 | 107 | 111 | 158 | 46.6 |
MAX | 298 | 80 | 319 | 949 | 755 | 1340 | 610 | 2050 | 533 | 718 | 1270 | 397 |
MIN | 24 | 25 | 21 | 37 | 64 | 50 | 59 | 29 | 26 | 26 | 26 | 20 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1948 - 1998, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 60.1 | 88.2 | 99.6 | 98.6 | 122 | 183 | 178 | 137 | 113 | 75.0 | 59.9 | 59.4 |
MAX | 356 | 385 | 391 | 328 | 421 | 534 | 362 | 399 | 445 | 333 | 236 | 372 |
(WY) | 1955 | 1991 | 1983 | 1993 | 1997 | 1979 | 1950 | 1996 | 1993 | 1996 | 1968 | 1961 |
MIN | 12.5 | 14.3 | 15.5 | 16.2 | 26.6 | 37.4 | 34.0 | 29.3 | 24.9 | 21.7 | 14.9 | 11.7 |
(WY) | 1951 | 1949 | 1951 | 1954 | 1963 | 1981 | 1986 | 1958 | 1948 | 1952 | 1948 | 1948 |
SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1948 - 1998 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 41217 | 53630 | ||||
ANNUAL MEAN | 113 | 147 | 106 | |||
HIGHEST ANNUAL MEAN | 199 | 1993 | ||||
LOWEST ANNUAL MEAN | 51.5 | 1963 | ||||
HIGHEST DAILY MEAN | 2670 | Feb 22 | 2050 | May 8 | 3810 | Nov 28 1990 |
LOWEST DAILY MEAN | 21 | Dec 9 | 20 | Sep 29 | 4.4 | Sep 11 1949 |
ANNUAL SEVEN-DAY MINIMUM | 25 | Sep 10 | 22 | Sep 23 | 9.0 | Sep 14 1948 |
INSTANTANEOUS PEAK FLOW | 2360 | May 8 | 4700 A | Jul 13 1957 | ||
INSTANTANEOUS PEAK STAGE | 13.07 | May 8 | 17.06 B | Jun 14 1981 | ||
INSTANTANEOUS LOW FLOW | 16 | Sep 28, 30 | ||||
10 PERCENT EXCEEDS | 247 | 375 | 227 | |||
50 PERCENT EXCEEDS | 51 | 53 | 47 | |||
90 PERCENT EXCEEDS | 28 | 27 | 22 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |